title: Fiber polarization control based on a fast locating algorithm.
abstract: In this article, currently used feedback control algorithms used in the polarization controller, including a simulated annealing algorithm and a gradient algorithm, are analyzed. On this basis, a new method of polarization control feedback algorithm based on a fast locating algorithm is proposed to solve the defects of the original algorithm, such as poor convergence and an extensive time consuming search. It can reduce convergence time and improve the response speed of the polarization controllers. This new endless polarization control algorithm utilizing a four-plate polarization controller is proposed and demonstrated. The results have shown that the response time of the polarization controller is less than 1 ms. The control of polarization is achieved and the output polarization state is stable, while the light intensity fluctuated less than 2%, which can run endless resets freely.
authors.forename: Zhimeng
authors.initials: Z
authors.lastname: Huang
authors.forename: Cangli
authors.initials: C
authors.lastname: Liu
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Li
authors.forename: Dayong
authors.initials: D
authors.lastname: Zhang
authors.forename: Heping
authors.initials: H
authors.lastname: Cheng
authors.forename: Yongquan
authors.initials: Y
authors.lastname: Luo
authors.forename: Qiqi
authors.initials: Q
authors.lastname: Hu
authors.forename: Mei
authors.initials: M
authors.lastname: Han